Improvement in the manufacture of glass



No. 79,892. v PATENTBD JULY 14, 1868. L. BLMELMANS L L. DE GIVE.

MANUPAGTURE 0F GLASS.

. UNITE-n f f STATES L. ,B'MEL'MAN'S .AQ-isnt.. DE Give; 'or-ATLANTAQGEORGIA,

PATENT OFFICE |MPRovEMENT-|N THE MANUFACTURE oF G LAss.

specification forming pm antenas raient N6.' 79,892, aateaJuly'ili, 186e.

civil engineer of mines, arts, and jiriaimifac-v tures; and LAURENT -nn GIVE, both residing in Atlanta, Georgia, have inventedfa newffand' improved process ofl manufacturing windowan'd'mirror glasses of whatever thickness, anda new and useful machine to earryit to op-A. eration, called .window and mirror glasses manufacturing machine# "and we do 4hereby c declare that` the following are full, c1ear,'and

exact' descriptions 'of them and' of the con struction of said machine, lrefereluge being had to the accompanying drawings, making afpart of this specification, andjzo the letters o f reference marked thereon, 'which descriptions Wilenablefethers Skilled in the art to make andguse o-urinvention'sand put themaL in periectuperatom i' Figure I. is' al front view of the machine.;

Big. II is a side view'of same. Fig. III is a perspective 'viewof theplate C. Fig. -IV is al perspective view ofthe frame' 13.! Fig. V is a perspective .view 'of the pressing-piece A., All the drawings are constructed on a. scale of one-twelfth of the natural size.`y

Our process'consists in pressing the lumps rl the quantity o f melted-glass between two parallel and. polished' plates-like castfiron or cast-stee-lv polished platesuntil the desired thickness isfo'btained. The melted fglass spreads undenthe' pressurevl and as longas said pressurefactsl until it reaches the sides of ,a frame, beyond which it cannot go, and when the upper plate is removed gives .a sheet all over equally thick, perfectly transparent, and polished, which is. taken away, to be'rheated again, 'like in the existing process. Our machine is'descrihed asfollows:

First, one` cast-iron-or. east-steel ,plate, (3

rectangular, one and one-half inches thick,"

'iifty' inches. wide, siXty-three and one-half 4inches long, perfectly polished on thenpper Y Second, one frame of same metal, B, rectan-I4 1 glar at its' base .andj sides, measuring .inside forty inches in width, fiftysix infehesln length,

and twenty-four inches inheight; also, pol -ished inside and below.V The four sides are open, (Fi g. IV,) to lighten the piece and give an opening for introduction of the melted glass. The upper part of `'alle frailie liasfin'side an edge, c, one inch thick and high. Y Thisedge repos'es on the case dof the pressing-piece A when the latter is brought up, and causes the frame' to ascend too with said piece.v The frame sits down on the plate Q, but is Snot .fastened'to it. Said frame is/xed by. four- J'pairsof guide-sockets, b lfb" 11to'fou'rf verti- -cal rods of iron, e' ee e, andis enabled by theset'omov'e up anddown; for the purpose of Ataking away the pressed-glass.

Third, 'one pressingpiece o fsalne metal, A,

.rectangular au its base and sides, said base v and-sides also polished outside. lSaid press-` 4ing piece measures, outside,` forty inches Ywidth andifty-six inches in Ilength at the base. Its height is twenty-live inches. It is hollow fand open at the top. A rod,'a, four :inches thick, is in communication with a motive power, that elevat`es or lowers the pressing piece. The sides of said pressing-piece slide up and down along the sides ofthe frame B, and tin perfectly, so as to'y keep said pressn g ing-piece steady in the vertical, so asto keep Y the base perfectly parallel to theplate C, and

So as to' prevent the pressed glass from es'cap- 'ing between its edges and the frame. Fourth, the whole is maintained byaframev oftimbers' twelve inches square, f ff-f. L

' The width and length of the plate, frame, and pressing-piece can be increased-or dimin ished, according to the size'of glassesthat are, -v

'The machine operates in the following main ner: The frame B being down on the plate C, a quantity of melted, glass, proportionate to the sheet of glass that is wanted, is placed by the front hole of the frame in the middle of the,

plate, the pressing-pieceAris-allowed to come down, and, pressing on the melted glass',-

Winddvgvand mrer glasses, f whatever thiek-v or'any othensubstantially the same, and which ness ainfszg bypressing' thenlelte'd glassbe- Will poduee the intended effect. tweentwo'barallel anpolished plates, what v' L. BMELMANS.

ever maybe-fthe 10de of I pressing emplby'ed. 4 4 LAUR. DE GIVE. 2.' Theinjiachine to carry said proeessin `op- Witnesses: eration, ea'lled windqwand mirror glasses man HANNIBAL FERRARI, ufaeturing machine, 7 Q 'heretefore described, l MARTINO BARDELLT.' 

